As a participle:
* Having finished her homework, she went outside to play.
* Having a lot of experience, she was the perfect candidate for the job.
* Having been to Paris before, she knew exactly where to go.
As part of a verb phrase:
* I am having a great time at the party.
* We are having lunch at noon.
* She was having trouble understanding the instructions.
In other grammatical constructions:
* Having said that, I still think it's a good idea.
* Having a good night's sleep is important for your health.
* Having coffee in the morning is a ritual for many people.
As a gerund:
* Having a pet can be a great source of companionship.
* Having a healthy lifestyle is important for your well-being.
* Having a good sense of humor is a valuable asset.
The meaning of "having" can vary depending on the context. However, in most cases, it indicates possession, experience, or action.